Median Nerve

Question 1

What is the source of the median nerve?

Answer 1

a union of the medial and lateral roots of the brachial plexus

C6-T1

Question 2

describe the path of the median nerve

Answer 2

runs through the anterior compartment of the arm with the brachial artery

passes through the cubital fossa medially to the brachial artery

enters the forearm between the two heads of the pronator teres

runs between the flexor digitorum superficialis and flexor digitorum profundus

passes through the carpal tunnel into the hand

Question 3

what are the branches of the median nerve?

Answer 3

no branches in the arm

anterior interosseous branch in the forearm

palmar cutaneous branch

recurrent branch in the thenar eminence

Question 4

which muscles does the median nerve innervate?

Answer 4

all of the anterior muscles of the forearm EXCEPT FCU and medial half of FDP (innervated by ulnar nerve)

muscles of the thenar eminence (abductor pollicis brevis, opponens pollicis, flexor pollicis brevis)

lumbricals 1-2